Use safer way to get parameters from window

[Niq1982]

const airReactionsSettings = get(window, 'airReactionsSettings', {})
-----------------------------------
function get(obj, props, defaults) {
  if (props in obj && typeof props === 'object') {
    return  {...defaults, ...obj[props]};
  }
  return {...defaults};
}

air-reactions/src/app.js

Lines 6 to 10 in 2b3e81e

	const settings = {
	requireLogin: window.airReactionsSettings.requireLogin === '1',
	visitorId: null,
	loginRequiredMessage: window.airReactionsSettings.loginRequiredMessage,
	}